项目三（开发团队调度软件）

整体结构

工具包

 Date类（员工数据）

package day2_1_project3.util;

public class Data {
    public static final int EMPLOYEE = 10;
    public static final int PROGRAMMER = 11;
    public static final int DESIGNER = 12;
    public static final int ARCHITECT = 13;

    public static final int PC = 21;
    public static final int NOTEBOOK = 22;
    public static final int PRINTER = 23;

    //Employee(一般员工): 10,id,name,age,salary
    //Programmer（程序员）: 11,id,name,age,salary
    //Designer（设计师）: 12,id,name,age,salary,bonus
    //Architect（架构师）: 13,id,name,age,salary,bonus,stock
    public static final String[][] EMPLOYEES = {
            {"10","1","马云","22","3000"},
            {"13","2","马化腾","32","18000","15000","2000"},
            {"11","3","李彦宏","23","7000"},
            {"11","4","刘强东","24","7300"},
            {"12","5","雷军","28","10000","5000"},
            {"11","6","任志强","22","6800"},
            {"12","7","柳传志","29","10800","5200"},
            {"13","8","杨元庆","30","19800","15000","2500"},
            {"12","9","史玉柱","26","3000","5500"},
            {"11","10","丁磊","21","6600"},
            {"11","11","张朝阳","25","7100"},
            {"12","12","杨志远","27","9600","4800"}
    };

    //如下的EQUIPMENTS数组与上面的EMPLOYEES数组元素一一对应
    //PC      :21,model,display
    //NoteBook:22,model,price
    //Printer :23,name,type
    public static final String[][] EQUIPMENTS = {
            {},
            {"22","联想T4","6000"},
            {"21","戴尔","NEC17寸"},
            {"21","戴尔","三星17寸"},
            {"23","佳能2900","激光"},
            {"21","华硕","三星17寸"},
            {"21","华硕","三星17寸"},
            {"23","爱普生20K","针式"},
            {"22","普惠m6","5800"},
            {"21","戴尔","NEC17寸"},
            {"21","华硕","三星17寸"},
            {"22","普惠m6","5800"},
    };
}

TSUtility类（读取键盘输入的工具类）

package day2_1_project3.util;
import java.util.Scanner;
public class TSUtility {
    private static Scanner scanner = new Scanner(System.in);

    /**
     * 读取键盘输入的菜单序号
     * @return
     */
    public static char readMenuSelection() {
        for (; ; ) {
            String str = readKeyBoard(1,false);
            char c = str.charAt(0);
            if (c == '1' || c == '2' || c == '3' || c == '4') {
                return c;
            }
            System.out.print("选择错误，请重新输入：");
        }
    }

    /**
     * 读取键盘输入字符
     * @return
     */
    public static char readChar() {
        for (; ; ) {
            String str = readKeyBoard(1,false);
            return str.charAt(0);
        }
    }

    public static int readInt() {
        for (; ; ) {
            String str = readKeyBoard(2,false);
            int num = Integer.parseInt(str);
            return num;
        }
    }


    public static char readConfirmSelection() {
        for (; ; ) {
            String str = readKeyBoard(1,false);
            char c = str.toUpperCase().charAt(0);
            if (c == 'Y' || c == 'N') {
                return c;
            }
            System.out.print("选择错误，请重新输入：");
        }
    }

    /**
     * 按Enter键继续
     */
    public static void readEnter() {
        System.out.print("按Enter键继续...");
        readKeyBoard(100, true);
    }


    /**
     * 读取键盘输入
     * @param limit
     * @return
     */
    private static String readKeyBoard(int limit,boolean enterKey){
        String str = "";
        while (scanner.hasNextLine() ) {
            str = scanner.nextLine().trim();
            if (str.length() == 0) {
                if (enterKey) {
                    return str;
                }
                System.out.println("请重新输入：");
            } else if (str.length() > limit) {
                System.out.print("输入长度不能大于" + limit + ",请重新输入：");
            } else {
                break;
            }
        }
        return str;
    }

}

实体类包

Employee类（一般员工）

package day2_1_project3.domain;

public class Employee {
    private int id;
    private String name;
    private int age;
    private double salary;

    public Employee() {
    }

    public Employee(int id, String name, int age, double salary) {
        this.id = id;
        this.name = name;
        this.age = age;
        this.salary = salary;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public double getSalary() {
        return salary;
    }

    public void setSalary(double salary) {
        this.salary = salary;
    }

    public String getDetails() {
        return id + "	" + name + "	"  + age + "		"  + salary;
    }

    @Override
    public String toString() {
        return getDetails();
    }
}

Programmer类（程序员）

package day2_1_project3.domain;

import day2_1_project3.service.Status;

public class Programmer extends Employee {
    private int memberId;//开发团队中的id
    //Status.FREE      空闲
    //Status.BUSY      已加入开发团队
    //Status.VOCATION  正在休假
    private Status status = Status.FREE;//默认的状态是FREE
    private Equipment equipment; //设备

    public Programmer() {
    }

    public Programmer(int id, String name, int age, double salary, Equipment equipment) {
        super(id, name, age, salary);
        this.equipment = equipment;
    }

    public int getMemberId() {
        return memberId;
    }

    public void setMemberId(int memberId) {
        this.memberId = memberId;
    }

    public Status getStatus() {
        return status;
    }

    public void setStatus(Status status) {
        this.status = status;
    }

    public Equipment getEquipment() {
        return equipment;
    }

    public void setEquipment(Equipment equipment) {
        this.equipment = equipment;
    }

    @Override
    public String toString() {
        return getDetails() + "	程序员	" + status + "					" + equipment.getDescription();
    }

    public String getBaseDetails() {
        return memberId + "/" + getId() + "		" + getName() + "	" + getAge() + "		" +
                getSalary();
    }

    public String getDetailsForTeam() {
        return getBaseDetails()  + "	" + "程序员"  + "	" + status + "					" + equipment.getDescription();
    }
}

Designer类（设计师）

package day2_1_project3.domain;

public class Designer extends Programmer {
    private double bonus;//奖金

    public Designer() {
    }

    public Designer(int id, String name, int age, double salary, Equipment equipment, double bonus) {
        super(id, name, age, salary, equipment);
        this.bonus = bonus;
    }

    public double getBonus() {
        return bonus;
    }

    public void setBonus(double bonus) {
        this.bonus = bonus;
    }

    @Override
    public String toString() {
        return getDetails() + "	设计师	" + getStatus() + "	" + bonus + "			" + getEquipment().getDescription();
    }

    @Override
    public String getDetailsForTeam() {
        return getBaseDetails()  + "	" + "设计师" + "	" + getStatus() + "	" + bonus + "			" + getEquipment().getDescription();
    }
}

Architect类（架构师）

package day2_1_project3.domain;

public class Architect extends Designer {
    private int stock;//股份

    public Architect() {
    }

    public Architect(int id, String name, int age, double salary, Equipment equipment, double bonus, int stock) {
        super(id, name, age, salary, equipment, bonus);
        this.stock = stock;
    }

    public int getStock() {
        return stock;
    }

    public void setStock(int stock) {
        this.stock = stock;
    }

    @Override
    public String toString() {
        return getDetails() + "	架构师	" + getStatus() + "	" + getBonus() + "	" + stock +"	" + getEquipment().getDescription();
    }
    @Override
    public String getDetailsForTeam() {
        return getBaseDetails()  + "	" + "架构师" + "	" + getStatus()  + "	" + getBonus() + "	" + stock + "	" + getEquipment().getDescription();
    }
}

Equipment接口（设备）

package day2_1_project3.domain;

public interface Equipment {
    String getDescription();
}

NoteBook类（笔记本电脑）

package day2_1_project3.domain;

public class NoteBook implements Equipment {
    private String model;//机器型号
    private double price;//机器价格

    @Override
    public String getDescription() {
        return model + "(" + price + ")";
    }

    public NoteBook() {
    }

    public NoteBook(String model, double price) {
        this.model = model;
        this.price = price;
    }

    public String getModel() {
        return model;
    }

    public void setModel(String model) {
        this.model = model;
    }

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }
}

PC类（台式电脑）

package day2_1_project3.domain;

public class PC implements Equipment{
    private String model;//机器型号
    private String display;//显示器名称

    @Override
    public String getDescription() {
        return model + "(" + display + ")";
    }

    public PC() {
    }

    public PC(String model, String display) {
        this.model = model;
        this.display = display;
    }

    public String getModel() {
        return model;
    }

    public void setModel(String model) {
        this.model = model;
    }

    public String getDisplay() {
        return display;
    }

    public void setDisplay(String display) {
        this.display = display;
    }
}

Printer类（打印机）

package day2_1_project3.domain;

public class Printer implements Equipment {
    private String name;//机器名称
    private String type;//机器类型

    @Override
    public String getDescription() {
        return name + "(" + type + ")";
    }

    public Printer(String name, String type) {
        this.name = name;
        this.type = type;
    }

    public Printer() {
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }
}

service包

NameListService类

package day2_1_project3.service;

import day2_1_project3.domain.*;
import static day2_1_project3.util.Data.*;


/**
 * 负责将Data中的数据封装到Employee[]数组中，同时提供相关操作Employee[]的方法
 */
public class NameListService {
    private Employee[] employees;

    /**
     * 1.根据项目提供的Data类构建相应大小的employees数组
     * 2.再根据Data类中的数据构建不同的对象，包括Employee,Programmer,Designer,Architect
     * 3.将对象存于数组中
     */
    public NameListService() {
        this.employees = new Employee[EMPLOYEES.length];

        for (int i = 0; i < EMPLOYEES.length; i++) {
            //获取Employee的4个基本信息
            int id = Integer.parseInt(EMPLOYEES[i][1]);
            String name = EMPLOYEES[i][2];
            int age = Integer.parseInt(EMPLOYEES[i][3]);
            double salary = Double.parseDouble(EMPLOYEES[i][4]);
            Equipment equipment;
            double bonus;

            int type = Integer.parseInt(EMPLOYEES[i][0]);
            switch (type) {
                case EMPLOYEE:
                    employees[i] = new Employee(id, name, age, salary);
                    break;
                case PROGRAMMER:
                    equipment = createEquipment(i);
                    employees[i] = new Programmer(id, name, age, salary, equipment);
                    break;
                case DESIGNER:
                    equipment = createEquipment(i);
                    bonus = Double.parseDouble(EMPLOYEES[i][5]);
                    employees[i] = new Designer(id, name, age, salary, equipment, bonus);
                    break;
                case ARCHITECT:
                    equipment = createEquipment(i);
                    bonus = Double.parseDouble(EMPLOYEES[i][5]);
                    int stock = Integer.parseInt(EMPLOYEES[i][6]);
                    employees[i] = new Architect(id, name, age, salary, equipment, bonus, stock);
                    break;
            }
        }
    }

    private Equipment createEquipment(int index) {
            int key = Integer.parseInt(EQUIPMENTS[index][0]);
            String modelOrName = EQUIPMENTS[index][1];
            switch (key) {
                case PC://21
                    String display = EQUIPMENTS[index][2];
                    return new PC(modelOrName,display);
                case NOTEBOOK://22
                    double price = Double.parseDouble(EQUIPMENTS[index][2]);
                    return new NoteBook(modelOrName,price);
                case PRINTER://23
                    String type = EQUIPMENTS[index][2];
                    return new Printer(modelOrName,type);
            }
            return null;
    }

    /**
     * 获取当前所有员工
     * @return
     */
    public Employee[] getAllEmployees() {
        return employees;
    }

    /**
     * 获取指定ID的员工对象
     * @param id
     * @return
     */
    public Employee getEmployee(int id) throws TeamException {
        for (int i = 0; i < employees.length; i++) {
            if (employees[i].getId() == id) {
                return employees[i];
            }
        }
        throw new TeamException("找不到指定的员工");
    }

}

TeamService类

package day2_1_project3.service;

import day2_1_project3.domain.Architect;
import day2_1_project3.domain.Designer;
import day2_1_project3.domain.Employee;
import day2_1_project3.domain.Programmer;

/**
 * 关于开发团队成员的管理：添加、删除等
 */
public class TeamService {
    private static int counter = 1;//用来为开发团队新增成员自动生成团队中的唯一ID，即memberId.
    private final int MAX_MEMBER = 5;//开发团队最大成员数
    private Programmer[] team = new Programmer[MAX_MEMBER];//保存当前团队中的各成员对象
    private int total;//记录团队成员的实际人数

    public TeamService() {
    }

    /**
     * 获取开发团队中的所有成员
     * @return
     */
    public Programmer[] getTeam() {
        Programmer[] programmers = new Programmer[total];
        for (int i = 0; i < total; i++) {
            programmers[i] = team[i];
        }
        return programmers;
    }

    /**
     * 将指定员工添加开发团队中
     * @param e
     * @throws TeamException
     */
    public void addMember(Employee e) throws TeamException {
        if (total >= MAX_MEMBER) {
            throw new TeamException("团队已满");
        }
        if (!(e instanceof Programmer)) {
            throw new TeamException("该成员不是开发人员");
        }
        if (isExist(e)) {
            throw new TeamException("该员工已在本开发团队中");
        }
        Programmer prog = (Programmer)e;
        //因为Status类没有重写Object的equals()方法，所以下面这个就不要使用了
        //if (programmer.getStatus().equals(Status.BUSY)){
        //下面这两行功能相识，但后者更好，因为equals()方法的调用者"BUSY",确保了不会出现空指针异常
        //if(programmer.getStatus().getNAME().equals("BUSY")){
        if("BUSY".equals(prog.getStatus().getNAME())){
            throw new TeamException(" 该员工已在某开发团队中");
        }else if ("VOCATION".equals(prog.getStatus().getNAME())) {
            throw new TeamException(" 该员工正在休假");
        }
        int numOfArch = 0,numOfDes = 0,numOfPro = 0;
        for (int i = 0; i <total; i++) {
            if (team[i] instanceof Architect) {
                numOfArch++;
            } else if (team[i] instanceof Designer) {
                numOfDes++;
            } else {
                numOfPro++;
            }
        }

        //（e instanceof Architect）是true的话，不管(numOfArch >= 1)是true还是false,
        // 下面的else if和else都不会执行
        if (e instanceof Architect) {
            if (numOfArch >= 1) {
                throw new TeamException("团队中至多只能有一名架构师");
            }
        } else if (e instanceof Designer) {
            if (numOfDes >= 2) {
                throw new TeamException("团队中至多只能有两名设计师");
            }
        } else {
            if (numOfPro >= 3) {
                throw new TeamException("团队中至多只能有三名程序员");
            }
        }


        //如果换成下面的编码，是否可以实现和上面一样的逻辑呢？
//        if (e instanceof Architect && numOfArch >= 1) {
//                throw new TeamException("团队中至多只能有一名架构师");
//        } else if (e instanceof Designer && numOfDes >= 2) {
//                throw new TeamException("团队中至多只能有两名设计师");
//        } else {
//                throw new TeamException("团队中至多只能有三名程序员");
//        }

        //分析：（e instanceof Architect）是true的话，如果(numOfArch >= 1)是false,
        // 则下面的else if和else就有可能执行了
        //举例，如果开发团队只有2个设计师，现在添加一个架构师，则会执行else if()语句
        //报错"团队中至多只能有两名设计师",但开发团队中并没有架构师，现在添加一名
        //架构师是完全可以的。所以上面的编码是不正确的

        prog.setStatus(Status.BUSY);
        prog.setMemberId(counter++);
        team[total++] = prog;
    }

    /**
     * 判断指定的员工是否已经在现有的开发团队中
     * @param e
     * @return
     */
    private boolean isExist(Employee e){
        for (int i = 0; i < total; i++) {
            if (e.getId() == team[i].getId()) {
                return true;
            }
        }
        return false;
    }

    public void removeMember(int memberId) throws TeamException {
        for (int i = 0; i < total; i++) {
            if (memberId == team[i].getMemberId()) {
                team[i].setStatus(Status.FREE);
                for (int j = i; j < total-1; j++) {
                    team[j] = team[j + 1];
                }
                team[--total] = null;
                return;
            }
        }
        throw new TeamException("找不到该成员");
    }
}

Status 状态类

package day2_1_project3.service;

public class Status {
    private final String NAME;

    private Status(String name) {
        this.NAME = name;
    }
    public static final Status FREE= new Status("FREE");
    public static final Status BUSY= new Status("BUSY");
    public static final Status VOCATION= new Status("VOCATION");

    public String getNAME() {
        return NAME;
    }

    @Override
    public String toString() {
        return NAME;
    }
}

TeamException 异常类

package day2_1_project3.service;

/**
 * 自定义异常类
 */
public class TeamException extends Exception {

    static final long serialVersionUID = -3387513124229948L;

    public TeamException() {
    }

    public TeamException(String message) {
        super(message);
    }
}

view包

TeamView类

package day2_1_project3.view;

import day2_1_project3.domain.Employee;
import day2_1_project3.domain.Programmer;
import day2_1_project3.service.NameListService;
import day2_1_project3.service.TeamException;
import day2_1_project3.service.TeamService;
import day2_1_project3.util.TSUtility;

public class TeamView {
    private NameListService listSvs = new NameListService();
    private TeamService teamSvs = new TeamService();

    /**
     * 主界面显示及控制方法
     */
    public void enterMainMenu(){
        boolean loopFlag = true;
        char menu = 0;
        while (loopFlag) {
            if (menu != '1') {
                listAllEmployees();
            }
            System.out.print("1-团队列表 2-添加团队成员 3-删除团队成员 4-退出 请选择（1-4）：");
            menu = TSUtility.readMenuSelection();
            switch (menu) {
                case '1':
                    getTeam();
                    break;
                case '2':
                    addMember();
                    break;
                case '3':
                    deleteMember();
                    break;
                case '4':
                    System.out.print("确认是否退出（Y/N）:");
                    char isExit = TSUtility.readConfirmSelection();
                    if (isExit == 'Y') {
                        loopFlag = false;
                    }
            }
        }

    }

    /**
     * 以表格方式列出公司所有成员
     */
    private void listAllEmployees() {
//        System.out.println("显示开发团队所有成员");
        System.out.println("----------------------------开发团队调度软件----------------------------
");
        Employee[] employees = listSvs.getAllEmployees();
        if (employees == null || employees.length == 0) {
            System.out.println("公司没有任何员工信息！");
        } else {
            System.out.println("ID	姓名	年龄	工资	职位	状态	奖金	股票	领用设备");
            for (int i = 0; i < employees.length;i++) {
                System.out.println(employees[i]);
            }
        }
        System.out.println("-------------------------------------------------------------------------");
    }

    /**
     * 显示团队成员
     */
    private void getTeam() {
//        System.out.println("团队列表");
        System.out.println("----------------------------团队成员列表----------------------------
");
        Programmer[] team = teamSvs.getTeam();
        if (team == null || team.length == 0) {
            System.out.println("开发团队目前没有成员！");
        } else {
            System.out.println("TID/ID	姓名	年龄	工资	职位	状态	奖金	股票	领用设备");
            for (int i = 0; i < team.length; i++) {
                System.out.println(team[i].getDetailsForTeam());
            }
        }
        System.out.println("-------------------------------------------------------------------------");
    }

    /**
     * 添加成员
     */
    private void addMember(){
//        System.out.println("添加成员");
        System.out.print("请输入要添加的成员ID：");
        int id = TSUtility.readInt();
        try {
            Employee e = listSvs.getEmployee(id);
            teamSvs.addMember(e);
            System.out.println("添加成功！");
        } catch (TeamException ex) {
            System.out.println("添加失败，原因：" + ex.getMessage());
        }
        //按Enter键继续
        TSUtility.readEnter();
    }

    /**
     * 删除成员
     */
    private void deleteMember() {
//        System.out.println("删除成员");
        System.out.print("请输入要删除的成员TID：");
        int tid = TSUtility.readInt();
        System.out.print("确认是否删除（Y/N）:");
        char isDelete = TSUtility.readConfirmSelection();
        if (isDelete == 'N') {
            return;
        }
        try {
            teamSvs.removeMember(tid);
            System.out.println("删除成功！");
        } catch (TeamException e) {
            System.out.println("添加失败，原因：" + e.getMessage());
        }
        TSUtility.readEnter();
    }

    public static void main(String[] args) {
        TeamView view = new TeamView();
        view.enterMainMenu();
    }
}